<template>
    <div>
        <router-view name="top"></router-view>
        <router-view name="left"></router-view>
        <router-view name="right"></router-view>
    </div>
</template>
<style scoped>
div{
    background-color: darkgray;
    width: 700px;
    height: 800px;
    margin: auto;
    padding-top: 5px;
}
</style>